2. Read the text below Years ago there wasn't a problem with rubbish because things like plastic and disposable nappieshadn't been invented. There wasn't so much packaging on items you bought either. But now witheverything so over packaged wrapped and disposable we are suffering the consequences of fartoo much waste. The trouble is not everything can be recycled or will rot away. You used to beable to get a refund on glass bottles when you took them back to the shop. Now they are eithercollected from your house by the council or you can take them to a bottle bank.The fact that paper can be recycled and is easy to dispose is great, but remember paper is madefrom trees, which are important to the environment. The rainforests have been slowlydisappearing for a while now. We need them not just because it helps with the climate. They areimportant as like all plants they give us oxygen. They are also a home to many animals who relyon them for their survival.The best waste is organic, dead leaves; carrot tops, onion skins and so on all rot down andmake fertile soil. This in turn will help the plants and vegetables giving them much needed food.So if you are able to have a compost heap in your garden you'll be helping the environment andyour garden will love you for it.Acid rain is another serious problem it is damaging to plants and is caused by pollutants suchas sulphur dioxide and nitrogen oxides. These come from the burning of coal, oil and gas.Dropping litter is not just a lazy thing to do it makes work for other people, is bad for theenvironment and looks ugly So think before you drop litter either bin it or keep it and then bin it.When rivers and seas are polluted by waste we are not only stealing their beauty but werespoiling it for ourselves too. Our health can also suffer. Sadly accidents do occur; oil slickssometimes happen and wreck the environment. Animals tend to suffer the most from theseincidents. We should really have in place something that will prevent so much destruction, ratherthan just waiting for it to happen, then trying to clean up the damage.Nuclear waste has been the cause of controversy over the years. Radioactive material leakingout would be very serious indeed, it can cause real harm. This is why it is the most worrying.Although we are trying to stop the hole in the ozone layer getting any bigger, nuclear waste istill a serious problem. The ozone layer protects us from harmful ultra-violet rays. Its hole haseen caused by chlorofluorocarbons (cfc's) a chemical that was found in some products, efrigerators used to contain them. So do we care enough about the earth we have inherited andur passing onto future generations? Or is it now all too late to do anything? Each one of us canhake a difference and each and every one of us is responsible to the environment. It takes carefus; we should take care of it.Answer the questions related to the text-) Say who or what the following words refer to.-themtheythemUSwhothemtheseUE的。DEa​